Our supercharged pleated panel filtering media is ideally suited for capturing fine airborne allergens such as dust smoke dander mold pet dander and dust mites. It attracts particulates similar to dust being attracted to a TV screen. Its uniform pleat shape design enhances dust holding capacity and helps maximizes air flow. Our air filters are up to 30-times more efficient at capturing allergens than ordinary fiberglass filters. Built with a heavy-duty construction frame that prevents airflow bypass. Lasts up to 3 months. Made in the USA!